[Elecraft] [OT] Birds and DX
Michael K Bottles
k7im at icloud.com
Sun Jun 7 10:54:04 EDT 2020
Reflective sparkly tapes seem to keep birds off my boats.
Cheap to buy on Amazon. Search for “bird repellent”.
de K7IM
Sent from my iPad
> On Jun 7, 2020, at 07:48, Dave Cole <dave at nk7z.net> wrote:
>
> Add upward pointing non-metallic pins along the top half of the loop.
>
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist
> ARRL Asst. Director, NW Division, Technical Resources
>
>> On 6/7/20 7:15 AM, Andy Durbin wrote:
>> I use a home brew mag loop on 30 m band and work into Asia most mornings with it. The loop tunes to a near perfect match (1.00:1 SWR) but becomes instantly detuned when a dove perches on top of it. SWR jumps instantly to > 3.0:1 and trips my High SWR monitor. The birds look stupid but they are smart enough not to straddle the loop opening. I imagine full loop voltage between their legs would de-tune them a bit but they just perch one side or the other.
>> Damn dove nearly cost me a QSO with JD1 this morning and that was new DX for 30 m. I tail ended with FT8, he came back, I started to send my report, High SWR trip, run to back door to chase the dove away, and got back before JD1 had given up on me.
>> So how to keep birds of a mag loop without lowing the Q?
>> 73,
>> Andy k3wyc
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